Parker Pressure Control Valve: 4 gpm, 90 psi Max Set, Stainless Steel
The PARKER 647B-3-1/4-2 is a soft-seat pressure control valve in stainless steel, rated for 4 gpm with a 90 psi maximum set point and 1/4 in NPT connections. 3G Electric interprets this demand and delivers the…
SKU 3G-OTH-173119
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Product Description
The PARKER 647B-3-1/4-2 is a soft-seat pressure control valve in stainless steel, rated for 4 gpm with a 90 psi maximum set point and 1/4 in NPT connections. 3G Electric interprets this demand and delivers the genuine OEM part, backed by specialist expertise in pumps and controls across 14 industrial departments.
Frequently Asked Questions
What is the Parker 647B-3-1/4-2 pressure control valve used for?
The Parker 647B-3-1/4-2 is a soft-seat pressure control valve used to regulate and maintain downstream pressure in hydraulic and pneumatic systems. It is commonly applied in industrial fluid power circuits, process control, and automation equipment where precise pressure limiting is required.
What are the specifications of the Parker 647B-3-1/4-2?
This Parker soft-seat pressure control valve has a maximum set pressure of 90 psi, a flow capacity of 4 gpm, and a 1/4 in NPT connection. The body is made of stainless steel. The manufacturer part number is 647B-3-1/4-2.
Where to buy the Parker 647B-3-1/4-2 worldwide?
3G Electric supplies the Parker 647B-3-1/4-2 pressure control valve worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to install the Parker 647B-3-1/4-2 pressure control valve?
Install the Parker 647B-3-1/4-2 valve in-line with flow direction per the arrow on the body. Use thread sealant on the 1/4 in NPT connections and tighten to manufacturer torque specs. Adjust the set pressure by turning the adjustment screw while monitoring downstream pressure with a gauge.
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Common applications for ParkerParker Products
3G Electric supplies Parker soft-seat pressure control valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













